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ISO6741-Q1 Datasheet(PDF) 22 Page - Texas Instruments |
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ISO6741-Q1 Datasheet(HTML) 22 Page - Texas Instruments |
22 / 35 page Application and Implementation Note Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality. 9.1 Application Information The ISO674x-Q1 devices are high-performance, quad-channel digital isolators. These devices come with enable pins on each side which can be used to put the respective outputs in high impedance for multi master driving applications. The ISO674x-Q1 devices use single-ended CMOS-logic switching technology. The supply voltage range is from 1.71 V to 5.5 V for both supplies, VCC1 and VCC2. Since an isolation barrier separates the two sides, each side can be sourced independently with any voltage within recommended operating conditions. As an example, it is possible to supply ISO674x-Q1 VCC1 with 3.3 V (which is within 1.71 V to 5.5 V) and VCC2 with 5V (which is also within 1.71 V to 5.5 V). You can use the digital isolator as a logic-level translator in addition to providing isolation. When designing with digital isolators, keep in mind that because of the single-ended design structure, digital isolators do not conform to any specific interface standard and are only intended for isolating single-ended CMOS or TTL digital signal lines. The isolator is typically placed between the data controller (that is, μC or UART), and a data converter or a line transceiver, regardless of the interface type or standard. 9.2 Typical Application Figure 9-1 shows ISO6741-Q1 in a belt starter generator application. MCU TMS570 ISO6741-Q1 TCAN1043 CANH CANL WAKE 48 V Side 12 V Side nSTB EN TXD RXD Figure 9-1. Belt Starter Generator Application ISO6741-Q1 SLLSFG4 – AUGUST 2020 www.ti.com 22 Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated Product Folder Links: ISO6741-Q1 |
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